One of the decisive factors affecting economy and security of diversion is standard of river diversion during construction.
施工导流标准是影响施工导流经济性、安全性的决定性因素之一，是导流建筑物规模设计的依据。
The standard of river diversion during construction is one of important problems involving safe and economic design scheme of hydroelectric project.
施工导流标准的确定，就其本质而言是风险决策问题。
During the construction of diversion channel in Daxia Hydropower Station in Yellow River, a retaining rock bar was reserved at entrance of diversion channel.
黄河大峡水电站导流明渠施工期间，在进口处采用预留岩坎挡水。
In RCC dam construction project, sometimes because of the need for grouting and river diversion, the thin concrete block during long intermittence would be caused after a long idle time.
在碾压混凝土坝施工过程中，有时因为灌浆和导流的需要，基岩上浇筑完基础垫层后长时间停歇，即形成基础垫层长间歇。
In RCC dam construction project, sometimes because of the need for grouting and river diversion, the thin concrete block during long intermittence would be caused after a long idle time.
在碾压混凝土坝施工过程中，有时因为灌浆和导流的需要，基岩上浇筑完基础垫层后长时间停歇，即形成基础垫层长间歇。
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